Development of Novel Vaccines in the U.S. has proven to be Critical in Impeding Outbreaks of Various Infectious Diseases
A vaccine prevents infection by providing a defense against foreign microorganisms that are not known to be part of the human immune system. In order for a vaccinated person to have full immunity, it must also be exposed to an infected organism for an extended period of time. Common types of vaccines include Rabies, Rubella, Hepatitis A, Chickenpox, Mumps, and Lassa. An attenuated vaccine works by recognizing and countering viruses that have already infected the body's immune systems. These viruses are called antigens, which are present in bacteria and viruses. By injecting the antigens into the body, the immune system is able to safely recognize them as dangerous invaders, develop antibodies, and store them for future use. One type of newly developed vaccine is the Varivax vaccine. It works best on children aged three to six years old who do not have regular vaccinations. This vaccine prevents illness caused by a disease called pertussis, which is highly co...